Definitely. Anytime that you're working out, and also a lot of people do this with weight training, a lot of people feel that more is better. So some People will hit the weights for 2 hours at a time. What happens is your body is not able to store protein that well. You can store body fat easily in your body there is almost unlimited stores of body fat capability sugar you can store in your muscles and your liver. But proteins you pretty much only have what's in your blood and then you have your muscles themselves. So what happens when you start to exceed an hour, go up to an hour and a half, two hours. Long workouts you start pulling your body's protein stores which were in your muscles so you start breaking apart your muscle tissue to use the protein for energy.